Merge change 9267

* changes:
  Don't invalidate view if setEnabled doesn't change the state.

core/java/android/view/View.java

@@ -2983,6 +2983,8 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
      * @param enabled True if this view is enabled, false otherwise.
      */
     public void setEnabled(boolean enabled) {
+        if (enabled == isEnabled()) return;
+
         setFlags(enabled ? ENABLED : DISABLED, ENABLED_MASK);
 
         /*